Background
Description
Photos
Related
References
Links

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Background 

This is a current (2016) amplifed speaker with an On/Off switch and volume control for both the speaker and also for handset/headsets.

Description

Theboth  handset mike audio outputs are tied toghther and are routed directly to the Radio Interface connector, i.e. it does not have any presence on the PCB.
The PTT lines from both handsets are tied toghther and go to both the Radio Interface connector and the PCB ofr Tx/Rx switching.
There are two audio inputs from the Radio Interface connector, maybe for the Left and Right handset audio connectors.

Connectors

Radio Interface

Panel connector: MS3114E10-6S
Cable connector: MS3116x10-6P

Pinout

Pin	Wire	Device	Description
A	Green	Handset-A	Audio gnd
B	Blue		Handset Spkr-1
C	White/Green	PCB-7	PTT
D	White/Black	Handset-D	Handset Mike
E	nc
F	Blue		Handset Spkr-2

Why two audio inputs on Pins B (standard) and Pin F (aux?).  Tell me

Power

Panel connector: KS3114E8-33P
Cable connector: MS3116x8-33S

Pinout

Pin	Wire	Description
A	Violet	nc
B	Green	return
C	Red	+24V

Pin A goes to PCB-17 through L8 then L4 then PCB-8 and then to Power-B.  So either A or B can be used as the DC power return.
Not sure why this is done?  If you know tell me.

Handset/Headset

Panel connector: U-283
Pins E & F not used
U-229 Audio Pinout

PCB

PCB Pinout

Pin	Wire Color	Device 1	Device 2
1	Blue	Radio-If-B
1A	Blue	Radio-If-F
2	Red	Pwr On-Off	Power-C
3	Orange	Headset-Pot-2
4	Yellow	Headset-Pot-3
4A	Yellow	Spkr-Pot-3
5	White/Red	Spkr-Pot-2
6	White/Green	R. Handset-C
6A	White/Green	L. Handset-C
7	White/Green	Radio-If-C
8	Green	Power-B
9	Green	Headset-Pot-1
10	Green	Spkr-Pot-1
11	White	Speaker
12	Brown	Chassis Ground
13	Black	Spkr-On/Off
14	Black	Speaker Spkr-On/Off
15	Gray	R. Handset-B
16	Gray	L. Handset-B
17	Violet	Power-A

1 = 1A
4 = 4A
6 = 6A = 7
9 = 10
17 - L8 - L4 - 8

Photos

Fig 1	Fig 2	Fig 3
Fig 4

Related

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Harris TS1000 ADSL Test Set
Harris RF-5051-PS001 & PP-6224 Power Supplies
Harris RF3200ET  Portable (Fly Away) Transceiver
Harris TSP-21 Telephone Test Set Plus (like but set, but belt-clip & operators headset
MAA Military Audio Accessories
MRC67 MRC-67A Amplifier-Speaker
TS585 TS-585 Audio Level Meter
U229AA U-229 Audio Accessories
U229PO U-229 Pin Out by Function
U229Y "Y" Cable,  U-229/U

References

Links

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Page Created 13 Oct 2016